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After Libyans, and much of the civilized world, rejoice in the seemingly inevitable fall of Muammar al-Qaddafi, the country will face the difficult task of repairing a society long traumatized by the Middle East's most Orwellian regime. Libya lacks both legitimate formal institutions and a functioning civil society. The new, post-Qaddafi era, therefore, is likely to be marked by the emergence of long-suppressed domestic groups jostling for supremacy in what is sure to be a chaotic political scene.

For four decades, Libya has been largely terra incognita, a place where the outsized personality of its quixotic leader and a byzantine bureaucracy obscured an informal network of constantly shifting power brokers. Even before the current unrest, working with these figures was uncertain at best -- "like throwing darts at balloons in a dark room," as one senior Western diplomat put it to me in 2009.

In the near future, even with Qaddafi gone, the country may face a continued contest between the forces of a free Libya and the regime's die-hard elements. In particular, Qaddafi's sons -- Saif al-Islam, Khamis, Al-Saadi, and Mutassim -- and their affiliated militias may not go quietly into the night; the struggle to root them out may be violent and protracted (think, for example, of Saddam Hussein's sons, Uday and Qusay). Saif al-Islam, who was known for years in the West as Libya's supposed champion of reform, revealed his true character as a reactionary much like his father by promising a "bloodbath" in a televised speech last week. On the ground, many of the attacks against demonstrators and their suspected sympathizers are being ordered by Captain Khamis al-Qaddafi, who heads the 32nd Brigade, the regime's best-trained and best-equipped force. As the current unrest unfolded, Al-Saadi's star was on the rise: as a brigadier in the special forces, he was dispatched to placate and then suppress the brewing revolt in Benghazi on February 16. Lastly, Mutassim, Libya's National Security Council adviser, reportedly sought in 2008 to establish his own militia to